Phase 3 update: orbit ghosts, parallax, FX, shader fix [build v8]

Add `AND webm_path IS NOT NULL` to the /api/freehunt pool so free-hunt
mode only selects ghosts with real media (and their derived webp/image
fallbacks), never bare procedural-wisp ghosts.

db/index.js

@@ -70,5 +70,19 @@ CREATE TABLE IF NOT EXISTS set_ghosts (
 );
 `);
 
+/* ---- Migrations (idempotent) ----
+ * Add transparent-video sprite columns to the existing ghosts table without
+ * dropping data. webm_path is the VP9+alpha billboard; webp_path is the
+ * animated-WebP fallback used where VP9 alpha isn't supported (e.g. iOS).
+ */
+function addColumnIfMissing(table, column, decl) {
+  const cols = db.prepare(`PRAGMA table_info(${table})`).all();
+  if (!cols.some((c) => c.name === column)) {
+    db.exec(`ALTER TABLE ${table} ADD COLUMN ${column} ${decl}`);
+  }
+}
+addColumnIfMissing('ghosts', 'webm_path', 'TEXT'); // VP9+alpha billboard (nullable)
+addColumnIfMissing('ghosts', 'webp_path', 'TEXT'); // animated-WebP fallback (nullable)
+
 export default db;
 export { DB_PATH };

lib/ghost-media.js

@@ -0,0 +1,111 @@
+import { spawn } from 'node:child_process';
+import { existsSync, statSync } from 'node:fs';
+import { basename, extname, join } from 'node:path';
+
+/*
+ * ghost-media.js — server-side ghost sprite conversion.
+ *
+ * Turns an uploaded black-background ghost MP4 into a transparent animated
+ * WebM (VP9 + alpha) plus an animated WebP fallback, using luma keying so the
+ * black becomes transparent and the glow keeps soft semi-transparent edges.
+ *
+ * Shells out to the system `ffmpeg` binary (no npm dependency). If ffmpeg is
+ * not installed, conversion fails gracefully and the caller keeps the original.
+ *
+ * This mirrors the standalone ghostify.sh pipeline so local and server output
+ * match.
+ */
+
+const FFMPEG = process.env.FFMPEG_PATH || 'ffmpeg';
+
+// Tunables (env-overridable) — kept in sync with ghostify.sh defaults.
+const THRESH = process.env.GHOST_KEY_THRESHOLD || '0.06';
+const TOL = process.env.GHOST_KEY_TOLERANCE || '0.10';
+const SOFT = process.env.GHOST_KEY_SOFTNESS || '0.15';
+const FPS = process.env.GHOST_FPS || '15';
+const MAXW = process.env.GHOST_MAXW || '512';
+const WEBP_Q = process.env.GHOST_WEBP_QUALITY || '80';
+const VP9_CRF = process.env.GHOST_VP9_CRF || '30';
+
+// The shared luma-key + downscale filter chain.
+function keyChain() {
+  const key = `format=rgba,lumakey=threshold=${THRESH}:tolerance=${TOL}:softness=${SOFT}`;
+  const scale = `scale='min(iw,${MAXW})':-1:flags=lanczos`;
+  return `${key},fps=${FPS},${scale}`;
+}
+
+function run(args) {
+  return new Promise((resolve, reject) => {
+    const proc = spawn(FFMPEG, args, { stdio: ['ignore', 'ignore', 'pipe'] });
+    let stderr = '';
+    proc.stderr.on('data', (d) => { stderr += d.toString(); });
+    proc.on('error', reject); // e.g. ffmpeg not found (ENOENT)
+    proc.on('close', (code) => {
+      if (code === 0) resolve();
+      else reject(new Error(`ffmpeg exited ${code}: ${stderr.slice(-500)}`));
+    });
+  });
+}
+
+/** True if a usable ffmpeg binary is on PATH. */
+export function ffmpegAvailable() {
+  return new Promise((resolve) => {
+    const proc = spawn(FFMPEG, ['-version'], { stdio: 'ignore' });
+    proc.on('error', () => resolve(false));
+    proc.on('close', (code) => resolve(code === 0));
+  });
+}
+
+function outName(srcFilename, ext) {
+  // wraith-1718.mp4 -> wraith-1718.webm / .webp, written alongside the source.
+  const stem = basename(srcFilename, extname(srcFilename));
+  return `${stem}.${ext}`;
+}
+
+/**
+ * Convert a source MP4 (already saved in uploadDir) into transparent webm+webp.
+ *
+ * @param {string} uploadDir  absolute uploads directory
+ * @param {string} srcFilename the multer filename of the uploaded mp4
+ * @returns {Promise<{ webm: string|null, webp: string|null }>} new filenames
+ *          (not full paths). Either may be null if that encode failed.
+ */
+export async function convertGhostMp4(uploadDir, srcFilename) {
+  const srcPath = join(uploadDir, srcFilename);
+  if (!existsSync(srcPath)) throw new Error(`source not found: ${srcPath}`);
+
+  const vf = keyChain();
+  const result = { webm: null, webp: null };
+
+  // --- WebM (VP9 + alpha): the primary, browser-decoded sprite ---
+  const webmName = outName(srcFilename, 'webm');
+  try {
+    await run([
+      '-hide_banner', '-loglevel', 'error', '-y', '-i', srcPath,
+      '-vf', vf, '-an',
+      '-c:v', 'libvpx-vp9', '-pix_fmt', 'yuva420p',
+      '-b:v', '0', '-crf', VP9_CRF, '-auto-alt-ref', '0',
+      join(uploadDir, webmName),
+    ]);
+    if (statSync(join(uploadDir, webmName)).size > 0) result.webm = webmName;
+  } catch (e) {
+    console.error('[ghost-media] webm encode failed:', e.message);
+  }
+
+  // --- WebP fallback: for iOS Safari / no-VP9-alpha browsers ---
+  const webpName = outName(srcFilename, 'webp');
+  try {
+    await run([
+      '-hide_banner', '-loglevel', 'error', '-y', '-i', srcPath,
+      '-vf', vf, '-loop', '0', '-an',
+      '-c:v', 'libwebp_anim', '-lossless', '0', '-q:v', WEBP_Q,
+      '-preset', 'drawing', '-compression_level', '6',
+      join(uploadDir, webpName),
+    ]);
+    if (statSync(join(uploadDir, webpName)).size > 0) result.webp = webpName;
+  } catch (e) {
+    console.error('[ghost-media] webp encode failed:', e.message);
+  }
+
+  return result;
+}

public/admin.html

@@ -100,12 +100,13 @@
         <label class="chk"><input type="checkbox" id="gm-enabled" checked /> Enabled</label>
       </div>
       <div class="image-row">
-        <label>Billboard image (GIF / PNG)</label>
+        <label>Billboard (GIF / PNG / WebP, or MP4 / WebM video)</label>
         <div class="row">
-          <input id="gm-file" type="file" accept=".gif,.png,.jpg,.jpeg,.webp" />
+          <input id="gm-file" type="file" accept=".gif,.png,.jpg,.jpeg,.webp,.webm,.mp4" />
           <img id="gm-preview" class="gm-preview hidden" alt="" />
+          <video id="gm-preview-vid" class="gm-preview hidden" muted loop playsinline></video>
         </div>
-        <div class="muted" style="font-size:11px;margin-top:4px">Upload happens after you save the ghost.</div>
+        <div class="muted" style="font-size:11px;margin-top:4px">Upload happens after you save the ghost. MP4 files are converted to a transparent WebM (with a WebP fallback) on the server.</div>
       </div>
       <div class="modal-actions">
         <button data-close>Cancel</button>

public/css/admin.css

@@ -32,7 +32,7 @@ td .sub { color: var(--text-dim); font-size: 12px; }
 .toggle.on { color: var(--gloom); } .toggle.off { color: var(--text-dim); }
 .row-actions { display: flex; gap: 6px; }
 .row-actions button { padding: 5px 9px; font-size: 11px; }
-.thumb-cell img { width: 34px; height: 34px; object-fit: contain; background: #000a; border-radius: 6px; }
+.thumb-cell img, .thumb-cell video { width: 34px; height: 34px; object-fit: contain; background: #000a; border-radius: 6px; }
 
 .sets-list { display: grid; gap: 14px; }
 .set-card { border: 1px solid var(--line); border-radius: var(--rad); padding: 16px; background: var(--panel); }

public/ghost-visual.js

@@ -0,0 +1,213 @@
+/**
+ * ghost-visual.js — Newbury Nights shared ghost visual (Phase 2)
+ *
+ * Replicates the original's architecture: ONE shared base body, recoloured by a
+ * per-colour gradient (recovered from GhostType_* assets). No per-ghost models.
+ *
+ *   Tier 0 (always): procedural wisp mesh + vertical gradient material.
+ *   Tier 1 (progressive enhancement): FX billboards (trail / glow / smoke)
+ *           layered on top when textures + GPU budget allow.
+ *   Special: two roster ghosts can use real meshes (Ghost_Baseball/Bat) via
+ *            the `meshLoader` hook.
+ *
+ * Engine-agnostic about your spawn/capture logic — this only produces the
+ * Object3D you place in the scene. Drop into your Three.js r160 app.
+ *
+ * Usage:
+ *   import { createGhostVisual, GHOST_GRADIENTS } from './ghost-visual.js';
+ *   const g = createGhostVisual(THREE, { color: 'Red', fx: true });
+ *   scene.add(g.object3d);
+ *   // each frame:
+ *   g.update(dt, elapsed);
+ */
+
+export const GHOST_GRADIENTS = {
+  Red:    { top: '#F65151', bottom: '#FF2678' }, // GhostType_Angry
+  Yellow: { top: '#B57F0B', bottom: '#FFF35D' }, // GhostType_Crazy
+  Blue:   { top: '#529EFF', bottom: '#51EAF1' }, // GhostType_Sad
+};
+
+const WISP_VERT = `
+  varying float vY;
+  varying vec3 vPos;
+  uniform float uTime;
+  void main() {
+    vec3 p = position;
+    // gentle billow so the wisp breathes
+    float w = sin(uTime * 1.6 + position.y * 3.0) * 0.04;
+    p.x += w * (0.5 + uv.y);
+    vY = uv.y;
+    vPos = position;            // object-space, for radial falloff in frag
+    gl_Position = projectionMatrix * modelViewMatrix * vec4(p, 1.0);
+  }
+`;
+
+const WISP_FRAG = `
+  varying float vY;
+  varying vec3 vPos;
+  uniform vec3  uTop;
+  uniform vec3  uBottom;
+  uniform float uAlpha;
+  uniform float uTime;
+  void main() {
+    vec3 col = mix(uBottom, uTop, vY);            // vertical gradient (head bright)
+    // breathing shimmer, never lets the body vanish
+    float shimmer = 0.78 + 0.22 * sin(uTime * 2.0 + vY * 6.2831);
+    float a = uAlpha * mix(0.55, 1.0, vY) * shimmer;
+    gl_FragColor = vec4(col, a);
+  }
+`;
+
+function hexToRGB(THREE, hex) { return new THREE.Color(hex); }
+
+/**
+ * Build the shared wisp body (a tapered, double-sided plane-ish blob).
+ * Kept cheap: a subdivided cone/teardrop so the gradient + billow read well.
+ */
+function buildWispGeometry(THREE) {
+  // teardrop-ish body: rounded head (sphere-like top) tapering to a wispy tail.
+  // Lathe a profile curve so it reads as a ghost rather than a hard cone.
+  const pts = [];
+  const N = 12;
+  for (let i = 0; i <= N; i++) {
+    const t = i / N;                 // 0 = tail bottom, 1 = head top
+    const y = -0.6 + t * 1.2;        // height -0.6 .. 0.6
+    // radius: thin pointed tail, bulging rounded head
+    const r = Math.sin(t * Math.PI * 0.92) * 0.42 + t * 0.06;
+    pts.push(new THREE.Vector2(Math.max(0.001, r), y));
+  }
+  const geo = new THREE.LatheGeometry(pts, 20);
+  return geo;
+}
+
+export function createGhostVisual(THREE, opts = {}) {
+  const color = opts.color && GHOST_GRADIENTS[opts.color] ? opts.color : 'Blue';
+  const grad = GHOST_GRADIENTS[color];
+  const wantFx = opts.fx !== false;
+
+  const group = new THREE.Group();
+  group.name = `ghost-${color}`;
+
+  // --- Tier 0: wisp body + gradient material ---
+  const uniforms = {
+    uTime:   { value: 0 },
+    uTop:    { value: hexToRGB(THREE, grad.top) },
+    uBottom: { value: hexToRGB(THREE, grad.bottom) },
+    uAlpha:  { value: 1.0 },
+  };
+  const mat = new THREE.ShaderMaterial({
+    vertexShader: WISP_VERT,
+    fragmentShader: WISP_FRAG,
+    uniforms,
+    transparent: true,
+    depthWrite: false,
+    side: THREE.DoubleSide,
+    blending: THREE.NormalBlending,
+  });
+  const body = new THREE.Mesh(buildWispGeometry(THREE), mat);
+  group.add(body);
+
+  // --- always-on soft glow halo (procedural, no texture needed) so the ghost
+  //     never looks like a bare cone even before FX textures attach ---
+  const haloMat = new THREE.SpriteMaterial({
+    color: hexToRGB(THREE, grad.bottom),
+    transparent: true, opacity: 0.35, depthWrite: false,
+    blending: THREE.AdditiveBlending,
+  });
+  const halo = new THREE.Sprite(haloMat);
+  halo.scale.setScalar(1.5);
+  halo.position.y = 0.1;
+  group.add(halo);
+
+  // --- Tier 1: FX billboards (progressive enhancement) ---
+  const fxSprites = [];
+  function addFxBillboard(texture, scale, yOffset, opacity, blend) {
+    const m = new THREE.SpriteMaterial({
+      map: texture,
+      color: new THREE.Color(grad.top),
+      transparent: true,
+      opacity,
+      depthWrite: false,
+      blending: blend ?? THREE.AdditiveBlending,
+    });
+    const s = new THREE.Sprite(m);
+    s.scale.setScalar(scale);
+    s.position.y = yOffset;
+    group.add(s);
+    fxSprites.push(s);
+    return s;
+  }
+
+  // caller passes a loaded-texture map when fx enabled; see attachFx()
+  let fxAttached = false;
+  function attachFx(textures) {
+    if (!wantFx || fxAttached || !textures) return;
+    // give the procedural halo a real soft-glow texture if provided
+    if (textures.glow) { haloMat.map = textures.glow; haloMat.opacity = 0.55; haloMat.needsUpdate = true; }
+    if (textures.trail) addFxBillboard(textures.trail, 1.0, -0.45, 0.4);
+    if (textures.smoke) addFxBillboard(textures.smoke, 0.8, 0.3, 0.25);
+    fxAttached = true;
+  }
+
+  // --- optional special mesh override (Ghost_Baseball / Ghost_Bat) ---
+  function useSpecialMesh(mesh) {
+    if (!mesh) return;
+    body.visible = false;
+    mesh.traverse?.(o => {
+      if (o.isMesh && o.material) {
+        o.material.color = new THREE.Color(grad.top);
+      }
+    });
+    group.add(mesh);
+  }
+
+  // --- spawn / capture animation helpers ---
+  let state = 'idle';
+  let stateT = 0;
+  function setState(s) { state = s; stateT = 0; }
+
+  function update(dt, elapsed) {
+    uniforms.uTime.value = elapsed;
+    stateT += dt;
+    // bob: offset the BODY around the group, so the group's spawn position
+    // stays fixed (previously this accumulated onto group.y and the ghost
+    // drifted up out of view every frame).
+    body.position.y = Math.sin(elapsed * 1.8) * 0.08;
+    halo.position.y = 0.1 + Math.sin(elapsed * 1.8) * 0.08; // halo bobs with body
+    // billboard FX face camera handled by Sprite automatically
+    if (state === 'spawn') {
+      const k = Math.min(stateT / 0.6, 1);
+      group.scale.setScalar(k);
+      uniforms.uAlpha.value = k;
+      if (k >= 1) setState('idle');
+    } else if (state === 'capture') {
+      const k = Math.min(stateT / 0.5, 1);
+      group.scale.setScalar(1 - k);
+      uniforms.uAlpha.value = 1 - k;
+    }
+  }
+
+  // start hidden, play spawn
+  group.scale.setScalar(0);
+  setState('spawn');
+
+  return {
+    object3d: group,
+    color,
+    update,
+    setState,                 // 'idle' | 'spawn' | 'capture'
+    attachFx,                 // call with {glow, trail, smoke} THREE.Textures
+    useSpecialMesh,           // call with a loaded Ghost_Baseball/Bat mesh
+    setColor(next) {
+      const g2 = GHOST_GRADIENTS[next]; if (!g2) return;
+      uniforms.uTop.value.set(g2.top);
+      uniforms.uBottom.value.set(g2.bottom);
+      haloMat.color.set(g2.bottom);
+      fxSprites.forEach(s => s.material.color.set(g2.top));
+    },
+    dispose() {
+      body.geometry?.dispose?.(); mat.dispose?.(); haloMat.dispose?.();
+      fxSprites.forEach(s => s.material?.map?.dispose?.());
+    },
+  };
+}

public/ghosts/mesh/Ghost_Bat.obj

@@ -0,0 +1,767 @@
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public/hunt.html

@@ -0,0 +1,605 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8" />
+<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no" />
+<title>Newbury Nights - Hunt Demo</title>
+<style>
+  :root {
+    --ink: #0a0c14;
+    --ink-2: #11131f;
+    --mist: #c7ccd9;
+    --mist-dim: #6b7184;
+    --red: #FF2678;
+    --red-top: #F65151;
+    --yellow: #FFF35D;
+    --yellow-top: #B57F0B;
+    --blue: #51EAF1;
+    --blue-top: #529EFF;
+    --haze: rgba(199,204,217,0.08);
+  }
+  * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
+  html, body {
+    margin: 0; height: 100%; overflow: hidden;
+    background: var(--ink); color: var(--mist);
+    font-family: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, monospace;
+    user-select: none;
+  }
+  #scene, #cam { position: fixed; inset: 0; width: 100%; height: 100%; }
+  #cam { object-fit: cover; z-index: 0; background: #000; }
+  #scene { z-index: 1; }
+  canvas { display: block; }
+
+  #hud { position: fixed; inset: 0; z-index: 3; pointer-events: none; }
+  .pointer { pointer-events: auto; }
+
+  #haunt {
+    position: fixed; left: 0; top: 0; bottom: 0; width: 8px; z-index: 4;
+  }
+  #haunt-fill {
+    position: absolute; left: 0; right: 0; bottom: 0; height: 0%;
+    background: linear-gradient(0deg, var(--blue), #fff2);
+    box-shadow: 0 0 18px var(--blue); transition: height 0.4s ease, background 0.6s, box-shadow 0.6s;
+  }
+  #haunt-label {
+    position: fixed; left: 14px; top: 14px; z-index: 5;
+    font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--mist-dim);
+  }
+  #haunt-pct { color: var(--mist); font-size: 13px; }
+
+  #readout {
+    position: fixed; right: 14px; top: 14px; z-index: 5; text-align: right;
+    font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--mist-dim);
+  }
+  #readout b { color: var(--mist); font-size: 15px; letter-spacing: 0; }
+
+  #reticle {
+    position: fixed; left: 50%; top: 50%; width: 64px; height: 64px;
+    transform: translate(-50%, -50%); z-index: 4; pointer-events: none;
+  }
+  #reticle .ring {
+    position: absolute; inset: 0; border: 1.5px solid var(--haze); border-radius: 50%;
+  }
+  #reticle .charge {
+    position: absolute; inset: 4px; border-radius: 50%;
+    background: conic-gradient(var(--blue) 0deg, transparent 0deg);
+    opacity: 0.85;
+  }
+  #reticle .dot { position: absolute; left: 50%; top: 50%; width: 4px; height: 4px;
+    transform: translate(-50%,-50%); background: var(--mist); border-radius: 50%; }
+  #reticle.locked .ring { border-color: var(--mist); }
+
+  #wheel {
+    position: fixed; left: 50%; bottom: 28px; transform: translateX(-50%);
+    z-index: 5; display: flex; gap: 14px; pointer-events: auto;
+  }
+  .lure {
+    width: 52px; height: 52px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.14);
+    background: var(--c); position: relative; cursor: pointer;
+    transition: transform 0.15s, box-shadow 0.2s, border-color 0.2s; opacity: 0.55;
+  }
+  .lure[data-on="1"] { opacity: 1; transform: scale(1.12);
+    border-color: #fff; box-shadow: 0 0 22px var(--c); }
+  .lure.red { --c: var(--red); }
+  .lure.blue { --c: var(--blue); }
+  .lure.yellow { --c: var(--yellow); }
+  #wheel-label { position: fixed; left: 50%; bottom: 88px; transform: translateX(-50%);
+    z-index: 5; font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase;
+    color: var(--mist-dim); }
+
+  #fire {
+    position: fixed; right: 22px; bottom: 30px; z-index: 6;
+    width: 84px; height: 84px; border-radius: 50%;
+    background: radial-gradient(circle at 50% 40%, var(--ink-2), #05060c);
+    border: 2px solid rgba(255,255,255,0.16); color: var(--mist);
+    font: inherit; font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
+    pointer-events: auto; cursor: pointer; touch-action: none;
+  }
+  #fire:active { border-color: #fff; }
+
+  #toasts { position: fixed; left: 50%; top: 64px; transform: translateX(-50%);
+    z-index: 6; display: flex; flex-direction: column; gap: 6px; align-items: center; }
+  .toast { font-size: 12px; letter-spacing: 0.06em; padding: 6px 12px;
+    background: rgba(10,12,20,0.7); border: 1px solid var(--haze); border-radius: 2px;
+    color: var(--mist); animation: rise 2.4s forwards; }
+  .toast .nm { color: #fff; }
+  @keyframes rise { 0% { opacity: 0; transform: translateY(6px);} 12%{opacity:1;transform:none;}
+    80%{opacity:1;} 100%{opacity:0;} }
+
+  #start { position: fixed; inset: 0; z-index: 10; background:
+      radial-gradient(120% 80% at 50% 0%, #14182a 0%, var(--ink) 60%);
+    display: flex; flex-direction: column; align-items: center; justify-content: center;
+    text-align: center; padding: 24px; }
+  #start h1 { font-size: clamp(30px, 9vw, 52px); margin: 0; letter-spacing: -0.01em;
+    font-weight: 600; color: #fff; line-height: 0.98; }
+  #start h1 .n2 { display: block; color: var(--blue); font-style: italic; }
+  #start p { max-width: 30ch; color: var(--mist-dim); font-size: 13px; line-height: 1.6;
+    letter-spacing: 0.02em; }
+  #start .sub { font-size: 10px; letter-spacing: 0.22em; text-transform: uppercase;
+    color: var(--mist-dim); margin-bottom: 18px; }
+  .btn { margin-top: 22px; pointer-events: auto; cursor: pointer; font: inherit;
+    font-size: 13px; letter-spacing: 0.16em; text-transform: uppercase;
+    padding: 14px 28px; color: var(--ink); background: var(--mist);
+    border: none; border-radius: 2px; }
+  .btn.ghost { background: transparent; color: var(--mist); border: 1px solid var(--haze);
+    margin-top: 10px; }
+  #note { position: fixed; bottom: 8px; left: 0; right: 0; text-align: center; z-index: 10;
+    font-size: 9px; letter-spacing: 0.14em; color: #3a3f4f; }
+  @media (prefers-reduced-motion: reduce) { .toast { animation-duration: 0.1s; } }
+
+  /* ---- debug overlay ---- */
+  #dbg-toggle { position: fixed; left: 14px; bottom: 14px; z-index: 7; pointer-events: auto;
+    font: inherit; font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
+    background: rgba(10,12,20,0.7); color: var(--mist-dim); border: 1px solid var(--haze);
+    border-radius: 2px; padding: 8px 10px; cursor: pointer; }
+  #dbg { position: fixed; left: 14px; bottom: 52px; z-index: 7; width: min(320px, 86vw);
+    max-height: 46vh; background: rgba(8,10,16,0.92); border: 1px solid var(--haze);
+    border-radius: 4px; padding: 10px; display: none; pointer-events: auto;
+    font-size: 10px; line-height: 1.5; color: var(--mist); }
+  #dbg.open { display: block; }
+  #dbg .row { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 6px;
+    color: var(--mist-dim); }
+  #dbg .row b { color: var(--mist); }
+  #dbg .ctl { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; }
+  #dbg .ctl button { font: inherit; font-size: 12px; width: 24px; height: 24px;
+    background: var(--ink-2); color: var(--mist); border: 1px solid var(--haze);
+    border-radius: 2px; cursor: pointer; }
+  #dbg-log { max-height: 28vh; overflow-y: auto; border-top: 1px solid var(--haze);
+    padding-top: 6px; font-family: ui-monospace, monospace; }
+  #dbg-log div { white-space: nowrap; }
+  #dbg-log .spawn { color: var(--yellow); }
+  #dbg-log .detect { color: var(--blue); }
+  #dbg-log .capture { color: #7CFFA0; }
+  #dbg-log .flee { color: var(--red); }
+
+  /* off-screen direction arrow */
+  #arrow { position: fixed; z-index: 6; width: 0; height: 0; pointer-events: none;
+    display: none; filter: drop-shadow(0 0 6px var(--c, var(--blue))); }
+</style>
+</head>
+<body>
+  <video id="cam" autoplay muted playsinline></video>
+  <div id="scene"></div>
+
+  <div id="hud">
+    <div id="haunt"><div id="haunt-fill"></div></div>
+    <div id="haunt-label">Haunt <span id="haunt-pct">0%</span></div>
+    <div id="readout"><b id="caught">0</b><br>caught &middot; <span id="score">0</span> pts</div>
+
+    <div id="reticle"><div class="ring"></div><div class="charge"></div><div class="dot"></div></div>
+
+    <div id="wheel-label">Lure</div>
+    <div id="wheel" class="pointer">
+      <div class="lure red"    data-color="Red"></div>
+      <div class="lure blue"   data-color="Blue"></div>
+      <div class="lure yellow" data-color="Yellow"></div>
+    </div>
+    <button id="fire">Hold<br>to charge</button>
+    <div id="toasts"></div>
+  </div>
+
+  <!-- off-screen ghost direction arrow -->
+  <svg id="arrow" width="40" height="40" viewBox="0 0 40 40"><path d="M20 4 L34 32 L20 24 L6 32 Z" fill="var(--c, #51EAF1)"/></svg>
+
+  <!-- debug overlay -->
+  <button id="dbg-toggle">Debug</button>
+  <div id="dbg">
+    <div class="row"><span>active / max</span><b><span id="dbg-active">0</span> / <span id="dbg-max">4</span></b></div>
+    <div class="ctl"><span style="color:var(--mist-dim)">max active</span>
+      <button id="dbg-minus">-</button><b id="dbg-maxval">4</b><button id="dbg-plus">+</button>
+      <label style="margin-left:auto;color:var(--mist-dim)"><input type="checkbox" id="dbg-beacon" checked> beacons</label>
+    </div>
+    <div class="row"><span>haunt</span><b id="dbg-haunt">0%</b></div>
+    <div class="row"><span>server log</span><b id="dbg-srv">off</b></div>
+    <div id="dbg-log"></div>
+  </div>
+
+  <div id="start">
+    <div class="sub">A spiritual successor - fan tribute</div>
+    <h1>Newbury<span class="n2">Nights</span></h1>
+    <p>Raise your phone to the room. Spirits gather in the dark - pick a lure colour,
+       aim, and charge your shot to catch them before the haunt overtakes the night.</p>
+    <button class="btn" id="go-ar">Begin hunt (AR)</button>
+    <button class="btn ghost" id="go-gyro">No AR - use motion</button>
+  </div>
+  <div id="note">Fan-made tribute. Not affiliated with or endorsed by the LEGO Group.</div>
+  <div id="ver" style="position:fixed;right:6px;bottom:6px;z-index:11;font-size:9px;color:#2e3340;letter-spacing:0.1em;">build v8</div>
+
+<script type="importmap">
+{ "imports": {
+  "three": "https://cdn.jsdelivr.net/npm/three@0.160.0/build/three.module.js",
+  "three/addons/": "https://cdn.jsdelivr.net/npm/three@0.160.0/examples/jsm/"
+}}
+</script>
+<script type="module">
+import * as THREE from 'three';
+import { createGhostVisual } from './ghost-visual.js?v=8';
+import { createHunt } from './hunt.js?v=8';
+console.log('%cNewbury Nights hunt — build v8 loaded (orbit ghosts + parallax)', 'color:#51EAF1');
+
+const $ = s => document.querySelector(s);
+let roster = [];
+try {
+  roster = await (await fetch('./ghosts.enriched.json?v=8')).json();
+} catch (e) {
+  roster = [
+    { id:'basic-r', name:'Wisp', color:'Red',    rarity:'Common', rarityTier:1, chargePips:2, healthMax:263 },
+    { id:'basic-b', name:'Wisp', color:'Blue',   rarity:'Common', rarityTier:1, chargePips:2, healthMax:263 },
+    { id:'basic-y', name:'Wisp', color:'Yellow', rarity:'Common', rarityTier:1, chargePips:2, healthMax:263 },
+  ];
+}
+
+const renderer = new THREE.WebGLRenderer({ alpha: true, antialias: true });
+renderer.setPixelRatio(Math.min(devicePixelRatio, 2));
+renderer.setSize(innerWidth, innerHeight);
+$('#scene').appendChild(renderer.domElement);
+
+const scene = new THREE.Scene();
+const camera = new THREE.PerspectiveCamera(70, innerWidth/innerHeight, 0.01, 50);
+scene.add(new THREE.HemisphereLight(0x8899ff, 0x111122, 1.1));
+
+// ---- load FX textures (glow/trail/smoke) so ghosts look wispy, not like cones ----
+const texLoader = new THREE.TextureLoader();
+function loadTex(path){
+  return new Promise(res => texLoader.load(path, t => res(t), undefined, () => res(null)));
+}
+const fxTextures = {
+  glow:  await loadTex('./ghosts/fx/FX_Glow.png?v=8'),
+  trail: await loadTex('./ghosts/fx/FX_WispyTrail2.png?v=8'),
+  smoke: await loadTex('./ghosts/fx/smokepuff1.png?v=8'),
+};
+console.log('FX textures loaded:', Object.fromEntries(Object.entries(fxTextures).map(([k,v])=>[k, !!v])));
+
+addEventListener('resize', () => {
+  renderer.setSize(innerWidth, innerHeight);
+  camera.aspect = innerWidth/innerHeight; camera.updateProjectionMatrix();
+});
+
+const hunt = createHunt(THREE, scene, {
+  roster, fx: true, fxTextures,
+  onEvent: (e) => {
+    if (e.type === 'spawn')   { spawnBeacon(e); dbgLog('spawn', e); }
+    if (e.type === 'capture') { toast(`Caught <span class="nm">${e.ghost.name}</span> +${e.score}`); dbgLog('capture', e); }
+    if (e.type === 'flee')    { toast(`<span class="nm">${e.ghost.name}</span> slipped away`); dbgLog('flee', e); }
+    if (e.type === 'capture' || e.type === 'spawn' || e.type === 'flee') {
+      score = scoreFromCaptures();
+      $('#caught').textContent = hunt.captured.length;
+      $('#score').textContent = score;
+    }
+    logToServer(e);
+  }
+});
+
+// ---- debug + telemetry ----
+const SESSION = Math.random().toString(36).slice(2, 8);
+let serverLog = false;        // toggled on if the endpoint answers
+let serverLogDisabled = false; // turns off after the first failure (e.g. static file server)
+let beaconsOn = true;
+const seenInView = new Set(); // ids already "detected" (entered the frustum)
+const beacons = new Map();    // id -> beacon mesh
+
+// spawn beacon: a bright, always-visible marker at the spawn point so you can
+// see WHERE a ghost is even if the wisp itself fails to render.
+function spawnBeacon(e){
+  if (!beaconsOn) return;
+  // find the matching active ghost's object3d to read its live position
+  const a = hunt.listActive().find(x => x.id === e.id);
+  const pos = a ? a.object3d.position : new THREE.Vector3(e.pos?.x||0, e.pos?.y||0, e.pos?.z||0);
+  const colMap = { Red:0xFF2678, Blue:0x51EAF1, Yellow:0xFFF35D };
+  const col = colMap[e.ghost?.color] || 0xffffff;
+  const grp = new THREE.Group();
+  // bright core
+  const core = new THREE.Mesh(
+    new THREE.SphereGeometry(0.12, 12, 12),
+    new THREE.MeshBasicMaterial({ color: col })
+  );
+  // halo ring billboard
+  const ring = new THREE.Sprite(new THREE.SpriteMaterial({ color: col, transparent:true, opacity:0.6 }));
+  ring.scale.setScalar(0.9);
+  grp.add(core); grp.add(ring);
+  grp.position.copy(pos);
+  grp.userData.born = performance.now();
+  scene.add(grp);
+  beacons.set(e.id, grp);
+}
+function updateBeacons(){
+  const now = performance.now();
+  for (const [id, g] of beacons) {
+    const age = (now - g.userData.born) / 1000;
+    const pulse = 0.7 + 0.3 * Math.sin(age * 6);
+    g.children[0].scale.setScalar(pulse);
+    g.children[1].material.opacity = 0.5 * pulse;
+    // beacon fades after 3s (ghost should be found by then)
+    if (age > 3) { scene.remove(g); beacons.delete(id); }
+    // also drop the beacon once the ghost is gone
+    if (!hunt.listActive().some(a => a.id === id) && age > 0.5) { scene.remove(g); beacons.delete(id); }
+  }
+}
+
+// detection: fire once when a ghost first enters the camera view
+function checkDetections(){
+  for (const a of hunt.listActive()) {
+    const p = a.object3d.position.clone().project(camera);
+    const inView = p.z < 1 && Math.abs(p.x) < 1 && Math.abs(p.y) < 1;
+    if (inView && !seenInView.has(a.id)) {
+      seenInView.add(a.id);
+      const e = { type:'detect', id:a.id, ghost:a.ghost };
+      dbgLog('detect', e); logToServer(e);
+    }
+  }
+}
+
+const dbgLogEl = () => $('#dbg-log');
+function dbgLog(kind, e){
+  const el = dbgLogEl(); if (!el) return;
+  const ts = new Date().toLocaleTimeString().slice(0,8);
+  const nm = e.ghost?.name || '';
+  const extra = e.pos ? ` @${e.pos.x},${e.pos.y},${e.pos.z}` : (e.score ? ` +${e.score}` : '');
+  const line = document.createElement('div');
+  line.className = kind;
+  line.textContent = `${ts}  ${kind.toUpperCase().padEnd(7)} ${nm}${extra}`;
+  el.prepend(line);
+  while (el.childNodes.length > 80) el.removeChild(el.lastChild);
+}
+
+async function logToServer(e){
+  if (serverLogDisabled) return;           // don't spam a server that can't receive POSTs
+  try {
+    const r = await fetch('/api/hunt-log', {
+      method:'POST', headers:{'Content-Type':'application/json'},
+      body: JSON.stringify({ ...e, ghost: e.ghost?.name, color: e.ghost?.color,
+        rarity: e.ghost?.rarity, session: SESSION })
+    });
+    if (r.ok) { if (!serverLog) { serverLog = true; $('#dbg-srv').textContent = 'on'; } }
+    else { serverLogDisabled = true; $('#dbg-srv').textContent = 'n/a (static)'; }
+  } catch(_) {
+    serverLogDisabled = true; $('#dbg-srv').textContent = 'n/a';   // no backend (static demo) — stop trying
+  }
+}
+const RARITY_SCORE = { Common:10, Rare:25, Epic:60, Legendary:150 };
+let score = 0;
+function scoreFromCaptures() {
+  const byId = Object.fromEntries(roster.map(g => [g.id, g]));
+  return hunt.captured.reduce((s,id)=> s + (RARITY_SCORE[byId[id]?.rarity]||10), 0);
+}
+
+document.querySelectorAll('.lure').forEach(el => {
+  el.addEventListener('click', () => {
+    const on = el.dataset.on === '1';
+    document.querySelectorAll('.lure').forEach(x => x.dataset.on='0');
+    if (!on) { el.dataset.on='1'; hunt.setLure(el.dataset.color); reticleColor(el.dataset.color); }
+    else { hunt.setLure(null); reticleColor(null); }
+  });
+});
+function reticleColor(c){
+  const map = { Red:'#FF2678', Blue:'#51EAF1', Yellow:'#FFF35D' };
+  document.documentElement.style.setProperty('--blue', map[c] || '#51EAF1');
+}
+
+function currentTarget() {
+  const list = hunt.listActive();
+  let best=null, bestD=Infinity;
+  for (const a of list) {
+    const p = a.object3d.position.clone().project(camera);
+    if (p.z > 1) continue;
+    const d = Math.hypot(p.x, p.y);
+    if (d < bestD) { bestD = d; best = a; }
+  }
+  return bestD < 0.35 ? best : null;
+}
+
+let charging=false, charge=0;
+const fireBtn = $('#fire');
+const chargeEl = $('#reticle .charge');
+function setCharge(v){
+  charge = Math.max(0, Math.min(1, v));
+  chargeEl.style.background = `conic-gradient(var(--blue) ${charge*360}deg, transparent ${charge*360}deg)`;
+}
+const press = (e)=>{ e.preventDefault(); charging=true; };
+const release = (e)=>{
+  e.preventDefault();
+  if (!charging) return; charging=false;
+  const t = currentTarget();
+  if (t) hunt.fireAt(t.id, charge);
+  setCharge(0);
+};
+fireBtn.addEventListener('pointerdown', press);
+fireBtn.addEventListener('pointerup', release);
+fireBtn.addEventListener('pointercancel', release);
+
+function toast(html){
+  const d = document.createElement('div'); d.className='toast'; d.innerHTML=html;
+  $('#toasts').appendChild(d); setTimeout(()=>d.remove(), 2400);
+}
+
+function paintHaunt(){
+  const h = hunt.haunt;
+  $('#haunt-fill').style.height = h + '%';
+  $('#haunt-pct').textContent = Math.round(h) + '%';
+  const col = h < 50 ? 'var(--blue)' : h < 80 ? 'var(--yellow)' : 'var(--red)';
+  $('#haunt-fill').style.background = `linear-gradient(0deg, ${col}, #fff2)`;
+}
+
+let usingXR = false, xrSession = null, gyroQuat = null;
+async function startAR(){
+  if (navigator.xr && await navigator.xr.isSessionSupported?.('immersive-ar')) {
+    try {
+      xrSession = await navigator.xr.requestSession('immersive-ar', { optionalFeatures:['local-floor','hit-test'] });
+      renderer.xr.enabled = true;
+      await renderer.xr.setSession(xrSession);
+      usingXR = true; beginLoop(); hideStart(); return;
+    } catch(e){ /* fall through to gyro */ }
+  }
+  startGyro();
+}
+async function startGyro(){
+  hideStart();
+  try {
+    const stream = await navigator.mediaDevices.getUserMedia({ video:{ facingMode:'environment' }, audio:false });
+    $('#cam').srcObject = stream;
+  } catch(e){ /* no camera - black bg is fine */ }
+  if (typeof DeviceOrientationEvent !== 'undefined' && DeviceOrientationEvent.requestPermission) {
+    try { await DeviceOrientationEvent.requestPermission(); } catch(e){}
+  }
+  // iOS requires a separate permission for motion (accelerometer) used by parallax
+  if (typeof DeviceMotionEvent !== 'undefined' && DeviceMotionEvent.requestPermission) {
+    try { await DeviceMotionEvent.requestPermission(); } catch(e){}
+  }
+  gyroQuat = new THREE.Quaternion();
+  let gotGyro = false;
+  const euler = new THREE.Euler();
+  const zee = new THREE.Vector3(0,0,1);
+  const q0 = new THREE.Quaternion();
+  const q1 = new THREE.Quaternion(-Math.sqrt(0.5),0,0,Math.sqrt(0.5));
+  addEventListener('deviceorientation', (ev)=>{
+    if (ev.alpha == null && ev.beta == null && ev.gamma == null) return;
+    gotGyro = true;
+    const a = THREE.MathUtils.degToRad(ev.alpha||0);
+    const b = THREE.MathUtils.degToRad(ev.beta||0);
+    const g = THREE.MathUtils.degToRad(ev.gamma||0);
+    const orient = THREE.MathUtils.degToRad(screen.orientation?.angle||0);
+    euler.set(b, a, -g, 'YXZ');
+    gyroQuat.setFromEuler(euler);
+    gyroQuat.multiply(q1);
+    gyroQuat.multiply(q0.setFromAxisAngle(zee, -orient));
+  }, true);
+  // if no gyro data arrives within 1s (desktop / no sensor), enable drag-look
+  setTimeout(() => { if (!gotGyro) enableDragLook(); }, 1000);
+  enableParallax();
+  beginLoop();
+}
+
+// ---- fake parallax: a subtle camera sway from device motion / tilt ----
+// Cannot give true positional tracking (iOS Safari has no WebXR), but reading
+// devicemotion lets us add a small depth-giving sway when you tilt or step.
+const parallax = { x: 0, y: 0, tx: 0, ty: 0 };
+function enableParallax(){
+  // tilt-based offset (works from deviceorientation beta/gamma we already get)
+  addEventListener('deviceorientation', (ev) => {
+    if (ev.beta == null && ev.gamma == null) return;
+    // map tilt to a tiny lateral/vertical target offset (clamped, metres)
+    parallax.tx = Math.max(-0.12, Math.min(0.12, (ev.gamma || 0) / 90 * 0.12));
+    parallax.ty = Math.max(-0.08, Math.min(0.08, ((ev.beta || 0) - 80) / 90 * 0.08));
+  }, true);
+  // motion-based micro-impulse (a step/jolt nudges the sway)
+  if (typeof DeviceMotionEvent !== 'undefined') {
+    addEventListener('devicemotion', (ev) => {
+      const a = ev.accelerationIncludingGravity || ev.acceleration;
+      if (!a) return;
+      parallax.tx += Math.max(-0.02, Math.min(0.02, (a.x || 0) * 0.002));
+      parallax.ty += Math.max(-0.02, Math.min(0.02, (a.y || 0) * 0.002));
+      parallax.tx = Math.max(-0.15, Math.min(0.15, parallax.tx));
+      parallax.ty = Math.max(-0.12, Math.min(0.12, parallax.ty));
+    }, true);
+  }
+}
+function hideStart(){ $('#start').style.display='none'; }
+
+$('#go-ar').addEventListener('click', startAR);
+$('#go-gyro').addEventListener('click', startGyro);
+
+// ---- desktop fallback: drag to look around (no gyro on desktop) ----
+let dragYaw = 0, dragPitch = 0, dragging = false, lastX = 0, lastY = 0;
+let usingDrag = false;
+function enableDragLook(){
+  usingDrag = true;
+  const el = renderer.domElement;
+  const down = (e) => { dragging = true; lastX = e.clientX ?? e.touches?.[0]?.clientX; lastY = e.clientY ?? e.touches?.[0]?.clientY; };
+  const move = (e) => {
+    if (!dragging) return;
+    const x = e.clientX ?? e.touches?.[0]?.clientX, y = e.clientY ?? e.touches?.[0]?.clientY;
+    dragYaw   -= (x - lastX) * 0.005;
+    dragPitch -= (y - lastY) * 0.005;
+    dragPitch = Math.max(-1.2, Math.min(1.2, dragPitch));
+    lastX = x; lastY = y;
+  };
+  const up = () => { dragging = false; };
+  el.addEventListener('mousedown', down); addEventListener('mousemove', move); addEventListener('mouseup', up);
+  el.addEventListener('touchstart', down, {passive:true}); addEventListener('touchmove', move, {passive:true}); addEventListener('touchend', up);
+}
+
+// ---- debug panel controls ----
+$('#dbg-toggle').addEventListener('click', () => $('#dbg').classList.toggle('open'));
+function setMax(n){
+  hunt.setMaxActive(n);
+  $('#dbg-maxval').textContent = hunt.maxActive;
+  $('#dbg-max').textContent = hunt.maxActive;
+}
+$('#dbg-minus').addEventListener('click', () => setMax(hunt.maxActive - 1));
+$('#dbg-plus').addEventListener('click',  () => setMax(hunt.maxActive + 1));
+$('#dbg-beacon').addEventListener('change', (e) => { beaconsOn = e.target.checked; });
+setMax(hunt.maxActive);
+
+// ---- off-screen direction arrow: points to the nearest off-screen ghost ----
+const arrowEl = $('#arrow');
+function updateArrow(){
+  const list = hunt.listActive();
+  let target = null, bestZ = Infinity;
+  for (const a of list) {
+    const p = a.object3d.position.clone().project(camera);
+    const onScreen = p.z < 1 && Math.abs(p.x) < 0.95 && Math.abs(p.y) < 0.95;
+    if (onScreen) continue;
+    if (p.z < bestZ) { bestZ = p.z; target = { a, p }; }
+  }
+  if (!target) { arrowEl.style.display = 'none'; return; }
+  // direction from screen centre toward the (clamped) projected point.
+  // behind-camera points (z>1) get flipped so the arrow still makes sense.
+  let { x, y, z } = target.p;
+  if (z > 1) { x = -x; y = -y; }
+  const ang = Math.atan2(y, x);                  // screen angle (y up)
+  const r = Math.min(innerWidth, innerHeight) * 0.36;
+  const cx = innerWidth/2 + Math.cos(ang) * r;
+  const cy = innerHeight/2 - Math.sin(ang) * r;  // CSS y is down
+  const colMap = { Red:'#FF2678', Blue:'#51EAF1', Yellow:'#FFF35D' };
+  arrowEl.style.setProperty('--c', colMap[target.a.ghost.color] || '#51EAF1');
+  arrowEl.querySelector('path').setAttribute('fill', colMap[target.a.ghost.color] || '#51EAF1');
+  arrowEl.style.display = 'block';
+  arrowEl.style.left = (cx - 20) + 'px';
+  arrowEl.style.top  = (cy - 20) + 'px';
+  arrowEl.style.transform = `rotate(${-ang + Math.PI/2}rad)`; // point outward
+}
+
+const clock = new THREE.Clock();
+function frame(){
+  const dt = Math.min(clock.getDelta(), 0.05);
+  const t = clock.elapsedTime;
+  if (charging) setCharge(charge + dt * 0.9);
+  if (usingXR) {
+    // In AR, the device pose drives renderer.xr.getCamera(). Sync our logic
+    // camera (used for targeting/detection/arrows) from it so position AND
+    // rotation both track as you physically move the phone.
+    const xrCam = renderer.xr.getCamera();
+    xrCam.getWorldPosition(camera.position);
+    xrCam.getWorldQuaternion(camera.quaternion);
+    camera.updateMatrixWorld();
+  } else if (usingDrag) {
+    const e = new THREE.Euler(dragPitch, dragYaw, 0, 'YXZ');
+    camera.quaternion.setFromEuler(e);
+  } else if (gyroQuat) {
+    camera.quaternion.copy(gyroQuat);
+  }
+  // fake parallax sway (non-XR only): ease the camera a touch toward the
+  // tilt/motion target, applied in view space so it reads as gentle depth.
+  if (!usingXR) {
+    parallax.x += (parallax.tx - parallax.x) * Math.min(1, dt * 4);
+    parallax.y += (parallax.ty - parallax.y) * Math.min(1, dt * 4);
+    // decay the motion impulse back toward the tilt baseline
+    parallax.tx *= 0.92; parallax.ty *= 0.92;
+    const right = new THREE.Vector3(1,0,0).applyQuaternion(camera.quaternion);
+    const up    = new THREE.Vector3(0,1,0).applyQuaternion(camera.quaternion);
+    camera.position.copy(right.multiplyScalar(parallax.x).add(up.multiplyScalar(parallax.y)));
+  }
+  hunt.update(dt, t);
+  updateBeacons();
+  checkDetections();
+  updateArrow();
+  $('#dbg-active').textContent = hunt.listActive().length;
+  $('#dbg-haunt').textContent = Math.round(hunt.haunt) + '%';
+  $('#reticle').classList.toggle('locked', !!currentTarget());
+  paintHaunt();
+  renderer.render(scene, camera);
+}
+function beginLoop(){ renderer.setAnimationLoop(frame); }
+</script>
+</body>
+</html>

public/hunt.js

@@ -0,0 +1,179 @@
+/**
+ * hunt.js — Newbury Nights hunt loop (Phase 3, standalone demo)
+ *
+ * Core v1 mechanics:
+ *   - Spawn: rarity-weighted draw from the roster, placed in a forward arc.
+ *   - Colour lure: the wheel sets the "lured" colour; matching ghosts spawn more
+ *     often and are worth more, mirroring the original's GhostColor mechanic.
+ *   - Capture: aim the reticle, hold to charge, release to fire. Charge time
+ *     scales with the ghost's chargePips; misses let it flee (escape timing).
+ *   - Hauntometer: every active/escaped ghost raises the meter; captures lower
+ *     it. As the meter climbs, spawn rate and rarity bias escalate — the session
+ *     gets harder the longer the haunt goes unchecked.
+ *
+ * Engine-agnostic: takes a THREE instance + a scene + the createGhostVisual
+ * factory. No AR/session code here — the page wires camera/anchor.
+ */
+
+import { createGhostVisual } from './ghost-visual.js';
+
+const RARITY_BASE_WEIGHT = { Common: 50, Rare: 30, Epic: 15, Legendary: 5 };
+const RARITY_SCORE       = { Common: 10, Rare: 25, Epic: 60, Legendary: 150 };
+const COLORS = ['Red', 'Blue', 'Yellow'];
+
+export function createHunt(THREE, scene, opts = {}) {
+  const roster = opts.roster || [];
+  let maxActive = opts.maxActive ?? 4;
+  const spawnArcDeg = opts.spawnArcDeg ?? 90; // ±45° — tighter so ghosts land in front
+  const fleeMinMs = opts.fleeMinMs ?? 12000;  // longer discovery window
+  const fleeMaxMs = opts.fleeMaxMs ?? 18000;
+  const fxTextures = opts.fxTextures || null; // {glow, trail, smoke} THREE.Textures
+  const onEvent = opts.onEvent || (() => {});
+
+  let luredColor = null;           // set by the colour wheel
+  let haunt = 0;                   // 0..100 hauntometer
+  let captured = [];               // captured ghost ids this session
+  const active = new Map();        // id -> { ghost, visual, hp, state, fleeAt }
+  let nextId = 1;
+  let spawnTimer = 0;
+
+  // --- weighted roster draw, biased by lure + haunt escalation ---
+  function pickGhost() {
+    // haunt escalation: higher haunt tilts the draw toward rarer ghosts
+    const escal = 1 + (haunt / 100) * 1.5; // up to 2.5x rare bias
+    const pool = [];
+    for (const g of roster) {
+      let w = RARITY_BASE_WEIGHT[g.rarity] || 1;
+      // rarer ghosts get heavier as haunt climbs
+      if (g.rarity !== 'Common') w *= escal;
+      // lure: matching colour spawns ~2x more often
+      if (luredColor && g.color === luredColor) w *= 2;
+      pool.push([g, w]);
+    }
+    const total = pool.reduce((s, [, w]) => s + w, 0);
+    let r = Math.random() * total;
+    for (const [g, w] of pool) { r -= w; if (r <= 0) return g; }
+    return pool[pool.length - 1][0];
+  }
+
+  function placeOnRing(a) {
+    // Full 360° ring around the stationary player at roughly eye level.
+    // Each ghost gets orbit params so it slowly circles + bobs; the player
+    // stands still and pans to track them (works on iOS, no walking needed).
+    a.azimuth = Math.random() * Math.PI * 2;              // start anywhere around
+    a.radius  = 2.6 + Math.random() * 1.6;               // 2.6–4.2m out
+    a.height  = -0.3 + Math.random() * 1.0;              // around eye level
+    a.orbitSpeed = (Math.random() < 0.5 ? -1 : 1) * (0.05 + Math.random() * 0.12); // rad/s, either direction
+    a.bobPhase = Math.random() * Math.PI * 2;
+    a.bobAmp = 0.1 + Math.random() * 0.2;
+    a.radiusPhase = Math.random() * Math.PI * 2;
+    a.radiusAmp = 0.2 + Math.random() * 0.4;             // gentle in/out drift
+    positionFromOrbit(a, 0);
+  }
+
+  function positionFromOrbit(a, elapsed) {
+    const az = a.azimuth + a.orbitSpeed * elapsed;
+    const r  = a.radius + Math.sin(elapsed * 0.5 + a.radiusPhase) * a.radiusAmp;
+    const y  = a.height + Math.sin(elapsed * 1.2 + a.bobPhase) * a.bobAmp;
+    a.visual.object3d.position.set(
+      Math.sin(az) * r,
+      y,
+      -Math.cos(az) * r
+    );
+  }
+
+  function spawn() {
+    if (active.size >= maxActive) return;
+    const g = pickGhost();
+    const visual = createGhostVisual(THREE, { color: g.color, fx: opts.fx !== false });
+    if (fxTextures) visual.attachFx(fxTextures);
+    scene.add(visual.object3d);
+    const id = nextId++;
+    // hp derived from health pips/stat; charge to capture scales with chargePips
+    const hp = (g.healthMax || 300) / 100;             // ~2.6-4.5
+    const a = {
+      ghost: g, visual, hp, maxHp: hp,
+      state: 'idle',
+      fleeAt: performance.now() + (fleeMinMs + Math.random() * (fleeMaxMs - fleeMinMs)), // escapes if ignored
+    };
+    placeOnRing(a);                                    // assign orbit + initial position
+    active.set(id, a);
+    haunt = Math.min(100, haunt + 4);                  // presence raises the meter
+    const p = visual.object3d.position;
+    onEvent({ type: 'spawn', id, ghost: g, haunt, pos: { x: +p.x.toFixed(2), y: +p.y.toFixed(2), z: +p.z.toFixed(2) } });
+  }
+
+  // --- capture attempt: called by the page with a charge level 0..1 ---
+  function fireAt(id, charge) {
+    const a = active.get(id);
+    if (!a) return { hit: false };
+    // damage = charge, but the ghost needs enough charge relative to chargePips
+    const needed = 0.4 + (a.ghost.chargePips || 2) * 0.12; // 0.5-1.0
+    const dmg = charge >= needed ? charge * 1.6 : charge * 0.4;
+    a.hp -= dmg;
+    if (a.hp <= 0) return capture(id);
+    a.state = 'hit';
+    onEvent({ type: 'hit', id, ghost: a.ghost, hpFrac: Math.max(0, a.hp / a.maxHp) });
+    return { hit: true, captured: false };
+  }
+
+  function capture(id) {
+    const a = active.get(id);
+    if (!a) return { hit: false };
+    a.visual.setState('capture');
+    const colorBonus = luredColor && a.ghost.color === luredColor ? 1.5 : 1;
+    const score = Math.round((RARITY_SCORE[a.ghost.rarity] || 10) * colorBonus);
+    captured.push(a.ghost.id);
+    haunt = Math.max(0, haunt - 10);                   // captures calm the haunt
+    setTimeout(() => { scene.remove(a.visual.object3d); a.visual.dispose(); }, 500);
+    active.delete(id);
+    onEvent({ type: 'capture', id, ghost: a.ghost, score, captured: captured.length, haunt });
+    return { hit: true, captured: true, score };
+  }
+
+  function flee(id) {
+    const a = active.get(id);
+    if (!a) return;
+    a.visual.setState('capture'); // reuse shrink-out
+    setTimeout(() => { scene.remove(a.visual.object3d); a.visual.dispose(); }, 400);
+    active.delete(id);
+    haunt = Math.min(100, haunt + 8);                  // an escape feeds the haunt
+    onEvent({ type: 'flee', id, ghost: a.ghost, haunt });
+  }
+
+  function setLure(color) {
+    luredColor = COLORS.includes(color) ? color : null;
+    onEvent({ type: 'lure', color: luredColor });
+  }
+
+  function update(dt, elapsed) {
+    // spawn cadence accelerates with haunt
+    const interval = Math.max(1.2, 4.5 - (haunt / 100) * 3.0);
+    spawnTimer += dt;
+    if (spawnTimer >= interval) { spawnTimer = 0; spawn(); }
+
+    const now = performance.now();
+    for (const [id, a] of active) {
+      // orbit-and-drift around the stationary player
+      if (a.state !== 'capture') positionFromOrbit(a, elapsed);
+      a.visual.update(dt, elapsed);
+      if (now >= a.fleeAt) flee(id);
+    }
+  }
+
+  function listActive() {
+    return [...active.entries()].map(([id, a]) => ({
+      id, ghost: a.ghost, object3d: a.visual.object3d,
+      hpFrac: Math.max(0, a.hp / a.maxHp),
+    }));
+  }
+
+  return {
+    update, spawn, fireAt, capture, flee, setLure, listActive,
+    setMaxActive(n) { maxActive = Math.max(1, n | 0); },
+    get maxActive() { return maxActive; },
+    get haunt() { return haunt; },
+    get captured() { return captured.slice(); },
+    get luredColor() { return luredColor; },
+  };
+}

public/js/admin.js

@@ -79,7 +79,11 @@ function renderGhosts() {
 }
 
 function ghostRow(g) {
-  const img = g.image_path ? `<img src="/uploads/${g.image_path}" alt="">` : '';
+  const img = g.image_path
+    ? `<img src="/uploads/${g.image_path}" alt="">`
+    : (g.webm_path
+        ? `<video src="/uploads/${g.webm_path}" muted loop autoplay playsinline></video>`
+        : '');
   const setRef = g.set_number ? `${g.set_number}` : '—';
   return `<tr>
     <td class="thumb-cell">${img}</td>
@@ -134,12 +138,45 @@ function openGhost(id) {
   $('#gm-boss').checked = !!g?.is_boss;
   $('#gm-enabled').checked = g ? !!g.enabled : true;
   $('#gm-file').value = '';
-  const prev = $('#gm-preview');
-  if (g?.image_path) { prev.src = `/uploads/${g.image_path}`; prev.classList.remove('hidden'); }
-  else prev.classList.add('hidden');
+  // Show the existing stored media: prefer the WebM video, else a still image
+  // (image_path is the GIF/PNG, or the WebP thumbnail for converted ghosts).
+  if (g?.webm_path) showPreview(`/uploads/${g.webm_path}`, 'video');
+  else if (g?.image_path) showPreview(`/uploads/${g.image_path}`, 'image');
+  else if (g?.webp_path) showPreview(`/uploads/${g.webp_path}`, 'image');
+  else hidePreview();
   $('#ghost-modal').classList.remove('hidden');
 }
 
+// Swap the modal preview between an <img> and a <video> depending on media kind.
+function showPreview(src, kind) {
+  const img = $('#gm-preview');
+  const vid = $('#gm-preview-vid');
+  if (kind === 'video') {
+    img.classList.add('hidden'); img.removeAttribute('src');
+    vid.src = src; vid.classList.remove('hidden');
+    vid.play?.().catch(() => {});
+  } else {
+    vid.classList.add('hidden'); vid.pause?.(); vid.removeAttribute('src');
+    img.src = src; img.classList.remove('hidden');
+  }
+}
+
+function hidePreview() {
+  const img = $('#gm-preview');
+  const vid = $('#gm-preview-vid');
+  img.classList.add('hidden'); img.removeAttribute('src');
+  vid.classList.add('hidden'); vid.pause?.(); vid.removeAttribute('src');
+}
+
+// Live local preview when a file is chosen (before upload).
+$('#gm-file').addEventListener('change', () => {
+  const file = $('#gm-file').files[0];
+  if (!file) return;
+  const url = URL.createObjectURL(file);
+  const isVideo = /\.(mp4|webm)$/i.test(file.name) || file.type.startsWith('video/');
+  showPreview(url, isVideo ? 'video' : 'image');
+});
+
 $('#gm-save').addEventListener('click', saveGhost);
 
 async function saveGhost() {

public/js/game.js

@@ -118,6 +118,17 @@ async function resolveCode(code) {
    ============================================================ */
 const TYPE_COLORS = { red: 0xff3b5c, yellow: 0xffc23b, blue: 0x3bb6ff };
 
+// Detect VP9-with-alpha WebM support once. iOS Safari historically lacks
+// reliable VP9-alpha, so those devices fall back to the GIF/WebP <img> path.
+const SUPPORTS_WEBM_ALPHA = (() => {
+  try {
+    const v = document.createElement('video');
+    return !!v.canPlayType && v.canPlayType('video/webm; codecs="vp9"') !== '';
+  } catch {
+    return false;
+  }
+})();
+
 const hunt = {
   running: false,
   scene: null, camera: null, renderer: null, raf: null,
@@ -289,7 +300,46 @@ const hunt = {
 
     let mesh;
     let texture = null;
-    if (data.image) {
+    if (data.webm && SUPPORTS_WEBM_ALPHA) {
+      // WebM (VP9+alpha) billboard via VideoTexture. The browser decodes and
+      // updates the texture itself — no per-frame needsUpdate pumping needed.
+      const vid = document.createElement('video');
+      vid.crossOrigin = 'anonymous';
+      vid.muted = true;        // required for autoplay
+      vid.loop = true;
+      vid.playsInline = true;  // iOS: stay inline, don't fullscreen
+      vid.autoplay = true;
+      vid.preload = 'auto';
+      vid.src = data.webm;
+      texture = new THREE.VideoTexture(vid);
+      texture.colorSpace = THREE.SRGBColorSpace;
+      texture.minFilter = THREE.LinearFilter;
+      texture.magFilter = THREE.LinearFilter;
+      texture.generateMipmaps = false;
+      const mat = new THREE.MeshBasicMaterial({ map: texture, transparent: true, side: THREE.DoubleSide, depthWrite: false });
+      mesh = new THREE.Mesh(new THREE.PlaneGeometry(1.2, 1.2), mat);
+      // If the video errors (e.g. alpha unsupported despite canPlayType), swap
+      // to the GIF/image billboard if we have one.
+      vid.onerror = () => {
+        if (group.userData.videoFellBack) return;
+        group.userData.videoFellBack = true;
+        if (data.image) {
+          const img = document.createElement('img');
+          img.crossOrigin = 'anonymous';
+          img.src = data.image;
+          const t2 = new THREE.Texture(img);
+          img.onload = () => { t2.needsUpdate = true; };
+          mesh.material.map = t2;
+          mesh.material.needsUpdate = true;
+          group.userData.gifImg = img;
+          group.userData.gifTex = t2;
+          group.userData.vidEl = null;
+        }
+      };
+      const pr = vid.play();
+      if (pr && pr.catch) pr.catch(() => {});
+      group.userData.vidEl = vid;
+    } else if (data.image) {
       // animated GIF billboard — texture.needsUpdate pumped each frame
       const img = document.createElement('img');
       img.crossOrigin = 'anonymous';
@@ -444,6 +494,7 @@ const hunt = {
   captureTarget() {
     const g = this.target;
     const d = g.userData.data;
+    if (g.userData.vidEl) { try { g.userData.vidEl.pause(); g.userData.vidEl.src = ''; } catch {} g.userData.vidEl = null; }
     this.scene.remove(g);
     this.ghosts = this.ghosts.filter((x) => x !== g);
     this.target = null;
@@ -543,6 +594,9 @@ const hunt = {
       removeEventListener('mouseup', this._blastEls.endBlast);
     }
     if (this.renderer) { this.renderer.dispose?.(); }
+    for (const g of this.ghosts) {
+      if (g.userData.vidEl) { try { g.userData.vidEl.pause(); g.userData.vidEl.src = ''; } catch {} g.userData.vidEl = null; }
+    }
     this.ghosts = []; this.target = null;
   },
 };

public/play.html

@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<meta charset="utf-8" />
+<meta name="viewport" content="width=device-width, initial-scale=1" />
+<title>Newbury Nights</title>
+<style>
+  :root{ --ink:#0a0c14; --mist:#c7ccd9; --mist-dim:#6b7184; --blue:#51EAF1;
+         --red:#FF2678; --yellow:#FFF35D; --haze:rgba(199,204,217,0.08); }
+  *{ box-sizing:border-box; }
+  html,body{ margin:0; min-height:100%; background:var(--ink); color:var(--mist);
+    font-family:ui-monospace,"SF Mono","Cascadia Mono",Menlo,monospace; }
+  body{ display:flex; flex-direction:column; align-items:center; justify-content:center;
+    min-height:100vh; text-align:center; padding:24px;
+    background:radial-gradient(120% 80% at 50% 0%, #14182a 0%, var(--ink) 60%); }
+  .sub{ font-size:10px; letter-spacing:0.24em; text-transform:uppercase; color:var(--mist-dim);
+    margin-bottom:18px; }
+  h1{ font-size:clamp(34px,11vw,68px); margin:0; font-weight:600; color:#fff; line-height:0.95;
+    letter-spacing:-0.01em; }
+  h1 .n2{ display:block; font-style:italic; color:var(--blue); }
+  .lures{ display:flex; gap:10px; justify-content:center; margin:22px 0 6px; }
+  .lures i{ width:14px; height:14px; border-radius:50%; display:block; }
+  .lures .r{ background:var(--red); box-shadow:0 0 12px var(--red); }
+  .lures .b{ background:var(--blue); box-shadow:0 0 12px var(--blue); }
+  .lures .y{ background:var(--yellow); box-shadow:0 0 12px var(--yellow); }
+  p{ max-width:34ch; color:var(--mist-dim); font-size:13px; line-height:1.6; }
+  .actions{ display:flex; flex-direction:column; gap:10px; margin-top:24px; width:min(280px,80vw); }
+  a.btn{ text-decoration:none; font-size:13px; letter-spacing:0.16em; text-transform:uppercase;
+    padding:15px 24px; border-radius:2px; }
+  a.primary{ background:var(--mist); color:var(--ink); }
+  a.ghost{ background:transparent; color:var(--mist); border:1px solid var(--haze); }
+  footer{ margin-top:36px; font-size:9px; letter-spacing:0.14em; color:#3a3f4f; }
+</style>
+</head>
+<body>
+  <div class="sub">A spiritual successor &middot; fan tribute</div>
+  <h1>Newbury<span class="n2">Nights</span></h1>
+  <div class="lures"><i class="r"></i><i class="b"></i><i class="y"></i></div>
+  <p>The town doesn't sleep after dark. Raise your phone, lure the spirits by colour,
+     and catch them before the haunt takes hold.</p>
+  <div class="actions">
+    <a class="btn primary" href="/hunt">Begin the hunt</a>
+    <a class="btn ghost" href="/#about">About this tribute</a>
+  </div>
+  <footer>Fan-made tribute. Not affiliated with or endorsed by the LEGO Group.</footer>
+</body>
+</html>

public/preview.html

@@ -0,0 +1,365 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover, maximum-scale=1" />
+  <title>Newbury Nights — Ghost Preview</title>
+  <link rel="stylesheet" href="/css/app.css" />
+  <script type="importmap">
+  {
+    "imports": {
+      "three": "https://cdn.jsdelivr.net/npm/three@0.160.0/build/three.module.js"
+    }
+  }
+  </script>
+  <style>
+    #pv-stage { position: fixed; inset: 0; overflow: hidden; background: #07090f; }
+    #pv-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
+    #pv-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
+    .pv-bar {
+      position: fixed; left: 0; right: 0; top: 0; z-index: 10;
+      display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
+      padding: 10px 14px; background: rgba(7,9,15,.82); backdrop-filter: blur(8px);
+      border-bottom: 1px solid rgba(255,255,255,.08);
+    }
+    .pv-bar .brand { font-weight: 700; letter-spacing: .04em; text-transform: uppercase; font-size: 14px; }
+    .pv-bar .brand span { color: var(--blue, #3bb6ff); }
+    .pv-bar select, .pv-bar button { font-size: 13px; }
+    .pv-bar .grow { flex: 1; }
+    .pv-hint { position: fixed; left: 0; right: 0; bottom: 0; z-index: 10;
+      text-align: center; padding: 8px; font-family: var(--mono, monospace); font-size: 11px;
+      color: rgba(255,255,255,.7); background: linear-gradient(transparent, rgba(7,9,15,.75)); }
+    .pv-controls { position: fixed; right: 14px; bottom: 36px; z-index: 10;
+      display: flex; flex-direction: column; gap: 8px; align-items: stretch; }
+    .pv-controls label { font-family: var(--mono, monospace); font-size: 10px; letter-spacing: .1em;
+      text-transform: uppercase; color: rgba(255,255,255,.65); }
+    .pv-controls input[type=range] { width: 150px; }
+    /* Login gate */
+    #pv-login { position: fixed; inset: 0; z-index: 20; display: grid; place-items: center;
+      padding: 24px; background: #07090f; }
+    .pv-login-card { background: var(--panel, #11151f); border: 1px solid rgba(255,255,255,.1);
+      border-radius: 14px; padding: 30px; width: 100%; max-width: 360px; }
+    .pv-login-card h1 { font-size: 30px; line-height: .9; margin: 0 0 4px; }
+    .pv-login-card h1 span { color: var(--blue, #3bb6ff); }
+    .pv-login-card .sub { font-size: 11px; letter-spacing: .3em; color: rgba(255,255,255,.55);
+      margin: 6px 0 22px; font-family: var(--mono, monospace); }
+    .pv-login-card label { display: block; margin-top: 12px; font-size: 13px; }
+    .pv-login-card input { width: 100%; box-sizing: border-box; }
+    .pv-err { color: var(--danger, #ff3b5c); font-size: 13px; margin-top: 12px; }
+    .hidden { display: none !important; }
+  </style>
+</head>
+<body>
+  <!-- Login gate (same client-side flow as /admin) -->
+  <div id="pv-login">
+    <div class="pv-login-card">
+      <h1>Newbury<span>Nights</span></h1>
+      <div class="sub">GHOST PREVIEW</div>
+      <label for="pv-user">Username</label>
+      <input id="pv-user" autocomplete="username" />
+      <label for="pv-pass">Password</label>
+      <input id="pv-pass" type="password" autocomplete="current-password" />
+      <button class="primary" id="pv-go" style="width:100%;margin-top:14px">Sign in</button>
+      <div id="pv-login-err" class="pv-err hidden"></div>
+    </div>
+  </div>
+
+  <!-- Preview stage -->
+  <div id="pv-stage" class="hidden">
+    <video id="pv-video" playsinline muted></video>
+    <canvas id="pv-canvas"></canvas>
+  </div>
+
+  <div id="pv-app" class="hidden">
+    <div class="pv-bar">
+      <div class="brand">Newbury<span>Nights</span> · PREVIEW</div>
+      <select id="pv-select"><option value="">Loading ghosts…</option></select>
+      <button id="pv-camera-toggle" class="small">Camera: on</button>
+      <span class="grow"></span>
+      <a href="/admin" class="small" style="text-decoration:none"><button class="small">← Admin</button></a>
+    </div>
+
+    <div class="pv-controls">
+      <label>Distance <span id="pv-dist-val">3.0</span></label>
+      <input id="pv-dist" type="range" min="1.5" max="8" step="0.1" value="3" />
+      <label>Size <span id="pv-size-val">1.2</span></label>
+      <input id="pv-size" type="range" min="0.4" max="3" step="0.1" value="1.2" />
+    </div>
+
+    <div class="pv-hint" id="pv-hint">Select a ghost to preview it over the camera feed.</div>
+  </div>
+
+  <script type="module">
+    import * as THREE from 'three';
+
+    const $ = (s) => document.querySelector(s);
+    const TYPE_COLORS = { red: 0xff3b5c, yellow: 0xffc23b, blue: 0x3bb6ff };
+
+    // VP9-alpha WebM transparency works on desktop Chromium/Gecko but NOT on
+    // WebKit: all iOS browsers (Safari, Chrome, Firefox) and desktop Safari play
+    // the WebM but render its alpha as opaque black. Those devices must fall
+    // through to the animated WebP (which IS transparent), so exclude WebKit here.
+    const SUPPORTS_WEBM_ALPHA = (() => {
+      try {
+        const ua = navigator.userAgent;
+        const isIOS = /iPad|iPhone|iPod/.test(ua) ||
+          (navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1); // iPadOS 13+ poses as Mac
+        const isSafari = /AppleWebKit/.test(ua) && !/Chrome|Chromium|Edg|OPR/.test(ua);
+        if (isIOS || isSafari) return false;
+        const v = document.createElement('video');
+        return !!v.canPlayType && v.canPlayType('video/webm; codecs="vp9"') !== '';
+      } catch { return false; }
+    })();
+
+    let TOKEN = null;
+    let GHOSTS = [];
+
+    /* ---------- login ---------- */
+    $('#pv-go').addEventListener('click', login);
+    $('#pv-pass').addEventListener('keydown', (e) => { if (e.key === 'Enter') login(); });
+
+    async function login() {
+      const username = $('#pv-user').value.trim();
+      const password = $('#pv-pass').value;
+      const err = $('#pv-login-err');
+      err.classList.add('hidden');
+      try {
+        const res = await fetch('/auth/login', {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({ username, password }),
+        });
+        if (!res.ok) throw new Error('bad login');
+        TOKEN = (await res.json()).token;
+      } catch {
+        err.textContent = 'Invalid username or password.';
+        err.classList.remove('hidden');
+        return;
+      }
+      $('#pv-login').classList.add('hidden');
+      $('#pv-stage').classList.remove('hidden');
+      $('#pv-app').classList.remove('hidden');
+      await loadGhosts();
+      initScene();
+      await initCamera();
+      loop();
+    }
+
+    async function loadGhosts() {
+      const res = await fetch('/api/admin/ghosts', { headers: { Authorization: `Bearer ${TOKEN}` } });
+      GHOSTS = (await res.json()).ghosts;
+      const sel = $('#pv-select');
+      sel.innerHTML = '<option value="">— pick a ghost —</option>' +
+        GHOSTS.map((g) => `<option value="${g.id}">${esc(g.name)}${g.is_boss ? ' (boss)' : ''} ${'★'.repeat(g.rarity)}</option>`).join('');
+      sel.addEventListener('change', () => {
+        const g = GHOSTS.find((x) => x.id === +sel.value);
+        if (g) showGhost(g);
+        else clearGhost();
+      });
+    }
+
+    /* ---------- camera ---------- */
+    let stream = null;
+    let cameraOn = true;
+    async function initCamera() {
+      const video = $('#pv-video');
+      try {
+        stream = await navigator.mediaDevices.getUserMedia({ video: { facingMode: 'environment' }, audio: false });
+        video.srcObject = stream;
+        await video.play();
+      } catch {
+        $('#pv-hint').textContent = 'Camera unavailable — ghost shown over a dark backdrop.';
+      }
+    }
+    $('#pv-camera-toggle').addEventListener('click', () => {
+      cameraOn = !cameraOn;
+      $('#pv-video').style.visibility = cameraOn ? 'visible' : 'hidden';
+      $('#pv-camera-toggle').textContent = `Camera: ${cameraOn ? 'on' : 'off'}`;
+    });
+
+    /* ---------- three.js scene ---------- */
+    let scene, camera, renderer, current = null, raf = null;
+    let distance = 3, size = 1.2;
+
+    function initScene() {
+      const canvas = $('#pv-canvas');
+      renderer = new THREE.WebGLRenderer({ canvas, alpha: true, antialias: true });
+      renderer.setPixelRatio(Math.min(devicePixelRatio, 2));
+      renderer.setSize(innerWidth, innerHeight);
+
+      scene = new THREE.Scene();
+      camera = new THREE.PerspectiveCamera(70, innerWidth / innerHeight, 0.1, 100);
+      camera.position.set(0, 0, 0);
+
+      scene.add(new THREE.AmbientLight(0xffffff, 0.85));
+      const p = new THREE.PointLight(0x88aaff, 1.2, 50);
+      p.position.set(0, 2, 2);
+      scene.add(p);
+
+      addEventListener('resize', () => {
+        camera.aspect = innerWidth / innerHeight;
+        camera.updateProjectionMatrix();
+        renderer.setSize(innerWidth, innerHeight);
+      });
+    }
+
+    // Build a ghost group using the SAME render path as the hunt:
+    // WebM (VP9+alpha) VideoTexture -> GIF/image Texture -> procedural wisp.
+    function buildGhost(data) {
+      const group = new THREE.Group();
+      const color = TYPE_COLORS[data.type] ?? 0xffffff;
+      let mesh;
+
+      // The admin endpoint (/api/admin/ghosts) returns raw DB rows with
+      // snake_case *_path fields holding bare filenames. Map them to /uploads
+      // URLs. (Also tolerate the public API shape: webm / webp / image.)
+      const up = (f) => (f ? (f.startsWith('/') || f.startsWith('http') ? f : `/uploads/${f}`) : null);
+      const webm = up(data.webm_path || data.webm);
+      const image = up(data.image_path || data.image || data.webp_path || data.webp);
+
+      if (webm && SUPPORTS_WEBM_ALPHA) {
+        const vid = document.createElement('video');
+        vid.crossOrigin = 'anonymous';
+        vid.muted = true; vid.loop = true; vid.playsInline = true; vid.autoplay = true; vid.preload = 'auto';
+        vid.src = webm;
+        const tex = new THREE.VideoTexture(vid);
+        // Desktop Chromium/Gecko only (WebKit excluded above). RGBAFormat keeps
+        // the alpha channel on frame upload; no SRGB override (it can crush the
+        // alpha); premultipliedAlpha off so transparent regions stay see-through.
+        tex.format = THREE.RGBAFormat;
+        tex.minFilter = THREE.LinearFilter; tex.magFilter = THREE.LinearFilter; tex.generateMipmaps = false;
+        const mat = new THREE.MeshBasicMaterial({
+          map: tex, transparent: true, side: THREE.DoubleSide,
+          depthWrite: false, premultipliedAlpha: false,
+        });
+        mesh = new THREE.Mesh(new THREE.PlaneGeometry(1, 1), mat);
+        vid.onerror = () => {
+          if (group.userData.fell || !image) return;
+          group.userData.fell = true;
+          const img = document.createElement('img');
+          img.crossOrigin = 'anonymous'; img.src = image;
+          const t2 = new THREE.Texture(img);
+          img.onload = () => { t2.needsUpdate = true; };
+          mesh.material.map = t2; mesh.material.needsUpdate = true;
+          group.userData.gifTex = t2; group.userData.gifImg = img; group.userData.vidEl = null;
+        };
+        const pr = vid.play(); if (pr && pr.catch) pr.catch(() => {});
+        group.userData.vidEl = vid;
+      } else if (image) {
+        // Animated WebP (the iOS/WebKit fallback). Three.js can't advance an
+        // animated WebP in a WebGL texture on iOS, so we render it as a real DOM
+        // <img> overlay (which animates natively) and project an invisible 3D
+        // anchor's screen position onto it each frame. The ghost still tracks
+        // distance/size and bobs, and transparency is native to the WebP.
+        const ovl = document.createElement('img');
+        ovl.crossOrigin = 'anonymous'; ovl.src = image;
+        ovl.style.cssText = 'position:fixed;left:0;top:0;pointer-events:none;z-index:5;transform:translate(-50%,-50%);will-change:left,top,width;';
+        document.body.appendChild(ovl);
+        // invisible anchor mesh so the existing bob/lookAt/position math applies
+        mesh = new THREE.Mesh(
+          new THREE.PlaneGeometry(1, 1),
+          new THREE.MeshBasicMaterial({ visible: false })
+        );
+        group.userData.overlayImg = ovl;
+        group.userData.overlayAspect = 1;
+        ovl.onload = () => {
+          group.userData.overlayAspect = (ovl.naturalWidth || 1) / (ovl.naturalHeight || 1);
+        };
+      } else {
+        const geo = new THREE.SphereGeometry(0.4, 24, 24);
+        const mat = new THREE.MeshStandardMaterial({
+          color, emissive: color, emissiveIntensity: 1.4, roughness: 0.4, transparent: true, opacity: 0.92,
+        });
+        mesh = new THREE.Mesh(geo, mat);
+        const halo = new THREE.Mesh(
+          new THREE.SphereGeometry(0.55, 24, 24),
+          new THREE.MeshBasicMaterial({ color, transparent: true, opacity: 0.16, side: THREE.BackSide })
+        );
+        group.add(halo);
+      }
+      group.add(mesh);
+      group.userData.mesh = mesh;
+      group.userData.bobPhase = Math.random() * Math.PI * 2;
+      return group;
+    }
+
+    function showGhost(data) {
+      clearGhost();
+      current = buildGhost(data);
+      applyTransform();
+      scene.add(current);
+      const hasWebm = !!(data.webm_path || data.webm);
+      const hasImg = !!(data.image_path || data.image || data.webp_path || data.webp);
+      const kind = hasWebm
+        ? (SUPPORTS_WEBM_ALPHA ? ' · WebM' : ' · WebP (WebKit fallback)')
+        : hasImg ? ' · image' : ' · procedural wisp';
+      $('#pv-hint').textContent = `${data.name}${kind}`;
+    }
+
+    function clearGhost() {
+      if (!current) return;
+      if (current.userData.vidEl) { try { current.userData.vidEl.pause(); current.userData.vidEl.src = ''; } catch {} }
+      if (current.userData.overlayImg) { try { current.userData.overlayImg.remove(); } catch {} }
+      scene.remove(current);
+      current = null;
+    }
+
+    function applyTransform() {
+      if (!current) return;
+      current.position.set(0, 0, -distance);
+      const m = current.userData.mesh;
+      if (m) m.scale.set(size, size, size);
+    }
+
+    $('#pv-dist').addEventListener('input', (e) => {
+      distance = +e.target.value; $('#pv-dist-val').textContent = distance.toFixed(1); applyTransform();
+    });
+    $('#pv-size').addEventListener('input', (e) => {
+      size = +e.target.value; $('#pv-size-val').textContent = size.toFixed(1); applyTransform();
+    });
+
+    const _v = new THREE.Vector3();
+    function loop() {
+      raf = requestAnimationFrame(loop);
+      const t = performance.now() / 1000;
+      if (current) {
+        current.position.y = Math.sin(t * 1.5 + current.userData.bobPhase) * 0.06;
+        current.lookAt(camera.position);
+        // Desktop WebM-onerror image fallback (rare): refresh its texture.
+        if (current.userData.gifTex && current.userData.gifImg?.complete) current.userData.gifTex.needsUpdate = true;
+        // iOS WebP overlay: project the invisible anchor to screen space and
+        // position/scale the DOM <img> so it tracks the 3D ghost (and animates).
+        const ud = current.userData;
+        if (ud.overlayImg) {
+          _v.copy(current.position);
+          _v.project(camera);
+          const onScreen = _v.z < 1;
+          if (onScreen) {
+            const sx = (_v.x * 0.5 + 0.5) * innerWidth;
+            const sy = (-_v.y * 0.5 + 0.5) * innerHeight;
+            // size in px: shrink with distance. fov-based scale at the anchor depth.
+            const depth = Math.abs(distance);
+            const worldH = size; // plane is 1 unit * size
+            const vFov = (camera.fov * Math.PI) / 180;
+            const viewH = 2 * Math.tan(vFov / 2) * depth;
+            const px = (worldH / viewH) * innerHeight;
+            ud.overlayImg.style.display = '';
+            ud.overlayImg.style.left = sx + 'px';
+            ud.overlayImg.style.top = sy + 'px';
+            ud.overlayImg.style.height = px + 'px';
+            ud.overlayImg.style.width = px * ud.overlayAspect + 'px';
+          } else {
+            ud.overlayImg.style.display = 'none';
+          }
+        }
+      }
+      renderer.render(scene, camera);
+    }
+
+    function esc(s) {
+      return String(s ?? '').replace(/[&<>"']/g, (c) =>
+        ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' }[c]));
+    }
+  </script>
+</body>
+</html>

routes/admin.js

@@ -6,6 +6,7 @@ import { dirname, extname, join } from 'node:path';
 import { fileURLToPath } from 'node:url';
 import db from '../db/index.js';
 import { requireAuth } from './auth-middleware.js';
+import { convertGhostMp4 } from '../lib/ghost-media.js';
 
 const __dirname = dirname(fileURLToPath(import.meta.url));
 const UPLOAD_DIR = join(__dirname, '..', process.env.UPLOAD_DIR || 'uploads');
@@ -14,7 +15,8 @@ mkdirSync(UPLOAD_DIR, { recursive: true });
 const router = Router();
 router.use(requireAuth); // everything here requires a valid JWT
 
-const ALLOWED = new Set(['.gif', '.png', '.jpg', '.jpeg', '.webp']);
+const ALLOWED = new Set(['.gif', '.png', '.jpg', '.jpeg', '.webp', '.webm', '.mp4']);
+const VIDEO_EXTS = new Set(['.mp4', '.webm']);
 const storage = multer.diskStorage({
   destination: (_req, _file, cb) => cb(null, UPLOAD_DIR),
   filename: (_req, file, cb) => {
@@ -24,13 +26,20 @@ const storage = multer.diskStorage({
 });
 const upload = multer({
   storage,
-  limits: { fileSize: 8 * 1024 * 1024 },
+  limits: { fileSize: 64 * 1024 * 1024 }, // 64MB — source MP4s are larger than GIFs
   fileFilter: (_req, file, cb) => {
     const ext = extname(file.originalname).toLowerCase();
     cb(ALLOWED.has(ext) ? null : new Error('unsupported file type'), ALLOWED.has(ext));
   },
 });
 
+// Remove an uploaded file by bare filename, ignoring errors.
+function removeUpload(filename) {
+  if (!filename) return;
+  const p = join(UPLOAD_DIR, filename);
+  if (existsSync(p)) try { unlinkSync(p); } catch { /* ignore */ }
+}
+
 const toInt = (v, d = 0) => (Number.isFinite(+v) ? parseInt(v, 10) : d);
 
 /* ---------------- Ghosts ---------------- */
@@ -87,26 +96,71 @@ router.patch('/ghosts/:id', (req, res) => {
   res.json({ ok: true });
 });
 
-router.post('/ghosts/:id/image', upload.single('image'), (req, res) => {
+router.post('/ghosts/:id/image', upload.single('image'), async (req, res) => {
   const ghost = db.prepare('SELECT * FROM ghosts WHERE id = ?').get(req.params.id);
-  if (!ghost) return res.status(404).json({ error: 'not found' });
-  if (!req.file) return res.status(400).json({ error: 'no file' });
-  // remove old image file if present
-  if (ghost.image_path) {
-    const old = join(UPLOAD_DIR, ghost.image_path);
-    if (existsSync(old)) try { unlinkSync(old); } catch { /* ignore */ }
+  if (!ghost) {
+    if (req.file) removeUpload(req.file.filename);
+    return res.status(404).json({ error: 'not found' });
   }
-  db.prepare('UPDATE ghosts SET image_path = ? WHERE id = ?').run(req.file.filename, ghost.id);
+  if (!req.file) return res.status(400).json({ error: 'no file' });
+
+  const ext = extname(req.file.filename).toLowerCase();
+
+  // Clear any previous media (image + video sprites) before recording the new set.
+  const cleanupOld = () => {
+    removeUpload(ghost.image_path);
+    removeUpload(ghost.webm_path);
+    removeUpload(ghost.webp_path);
+  };
+
+  if (ext === '.mp4') {
+    // Convert the source MP4 to a transparent WebM (VP9+alpha) plus a WebP
+    // fallback via luma keying. The original MP4 is removed afterwards.
+    let out;
+    try {
+      out = await convertGhostMp4(UPLOAD_DIR, req.file.filename);
+    } catch (e) {
+      removeUpload(req.file.filename);
+      return res.status(500).json({ error: 'conversion failed', detail: e.message });
+    }
+    removeUpload(req.file.filename); // discard the raw mp4
+    if (!out.webm && !out.webp) {
+      return res.status(500).json({ error: 'conversion produced no output (is ffmpeg installed?)' });
+    }
+    cleanupOld();
+    // webp doubles as the still/thumbnail image where present.
+    db.prepare('UPDATE ghosts SET webm_path = ?, webp_path = ?, image_path = ? WHERE id = ?')
+      .run(out.webm, out.webp, out.webp, ghost.id);
+    return res.json({
+      ok: true,
+      webm: out.webm ? `/uploads/${out.webm}` : null,
+      webp: out.webp ? `/uploads/${out.webp}` : null,
+      image: out.webp ? `/uploads/${out.webp}` : null,
+    });
+  }
+
+  if (ext === '.webm') {
+    // Pre-made transparent WebM uploaded directly — store as-is.
+    cleanupOld();
+    db.prepare('UPDATE ghosts SET webm_path = ?, webp_path = NULL, image_path = NULL WHERE id = ?')
+      .run(req.file.filename, ghost.id);
+    return res.json({ ok: true, webm: `/uploads/${req.file.filename}` });
+  }
+
+  // Plain image (gif/png/jpg/webp) — the original billboard path. Clear any
+  // previous video sprites so the ghost falls back cleanly to the image.
+  cleanupOld();
+  db.prepare('UPDATE ghosts SET image_path = ?, webm_path = NULL, webp_path = NULL WHERE id = ?')
+    .run(req.file.filename, ghost.id);
   res.json({ ok: true, image: `/uploads/${req.file.filename}` });
 });
 
 router.delete('/ghosts/:id', (req, res) => {
   const ghost = db.prepare('SELECT * FROM ghosts WHERE id = ?').get(req.params.id);
   if (!ghost) return res.status(404).json({ error: 'not found' });
-  if (ghost.image_path) {
-    const p = join(UPLOAD_DIR, ghost.image_path);
-    if (existsSync(p)) try { unlinkSync(p); } catch { /* ignore */ }
-  }
+  removeUpload(ghost.image_path);
+  removeUpload(ghost.webm_path);
+  removeUpload(ghost.webp_path);
   db.prepare('DELETE FROM ghosts WHERE id = ?').run(ghost.id);
   res.json({ ok: true });
 });

routes/api.js

@@ -24,6 +24,8 @@ function rowToGhost(g) {
     setNumber: g.set_number,
     setName: g.set_name,
     image: g.image_path ? `/uploads/${g.image_path}` : null,
+    webm: g.webm_path ? `/uploads/${g.webm_path}` : null,
+    webp: g.webp_path ? `/uploads/${g.webp_path}` : null,
   };
 }
 
@@ -73,7 +75,9 @@ router.get('/scan/:code', (req, res) => {
 router.get('/freehunt', (req, res) => {
   const n = Math.min(parseInt(req.query.n, 10) || 3, 10);
   const type = req.query.type; // optional red|yellow|blue filter
-  let q = 'SELECT * FROM ghosts WHERE enabled = 1 AND is_boss = 0';
+  // Free hunt only spawns ghosts with an uploaded video (webm); the webp/image
+  // fallbacks are derived from it, so these always render on every platform.
+  let q = 'SELECT * FROM ghosts WHERE enabled = 1 AND is_boss = 0 AND webm_path IS NOT NULL';
   const params = [];
   if (type && ['red', 'yellow', 'blue'].includes(type)) {
     q += ' AND type = ?';

routes/hunt-log.js

@@ -0,0 +1,52 @@
+/**
+ * routes/hunt-log.js — receives hunt telemetry from the client and appends it
+ * to a daily log file on the server. Debug aid: confirms spawns / detections /
+ * captures are firing server-side even when something looks wrong on-device.
+ *
+ * Wire in server.js:
+ *   import huntLogRoutes from './routes/hunt-log.js';
+ *   app.use('/api/hunt-log', huntLogRoutes);
+ *
+ * Log file: logs/hunt-YYYY-MM-DD.log  (one JSON object per line)
+ */
+import { Router } from 'express';
+import { appendFile, mkdir } from 'node:fs/promises';
+import { dirname, join } from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const LOG_DIR = join(__dirname, '..', 'logs');
+
+const router = Router();
+
+// Accept a single event or a batch. Keep it small + permissive.
+router.post('/', async (req, res) => {
+  try {
+    const body = req.body || {};
+    const events = Array.isArray(body.events) ? body.events : [body];
+    const day = new Date().toISOString().slice(0, 10);
+    const file = join(LOG_DIR, `hunt-${day}.log`);
+
+    await mkdir(LOG_DIR, { recursive: true });
+    const lines = events.map(e => JSON.stringify({
+      t: new Date().toISOString(),
+      ip: req.ip,
+      type: e.type || 'unknown',
+      ghost: e.ghost || null,
+      color: e.color || null,
+      rarity: e.rarity || null,
+      haunt: typeof e.haunt === 'number' ? Math.round(e.haunt) : null,
+      pos: e.pos || null,          // {x,y,z} spawn position when present
+      session: e.session || null,  // client session id
+    })).join('\n') + '\n';
+
+    await appendFile(file, lines, 'utf8');
+    res.json({ ok: true, logged: events.length });
+  } catch (err) {
+    // never let logging break the hunt
+    console.error('hunt-log error:', err.message);
+    res.status(200).json({ ok: false });
+  }
+});
+
+export default router;

server.js

@@ -35,7 +35,23 @@ app.get('/admin', (_req, res) => {
   res.sendFile(join(__dirname, 'public', 'admin.html'));
 });
 
+// Ghost preview page (admin-gated client-side; ghost list requires a JWT).
+app.get('/preview', (_req, res) => {
+  res.sendFile(join(__dirname, 'public', 'preview.html'));
+});
+
 // JSON error handler (multer + thrown errors).
+
+// Hunt page (Phase 3 AR ghost hunt; standalone, no auth).
+app.get('/hunt', (_req, res) => {
+  res.sendFile(join(__dirname, 'public', 'hunt.html'));
+});
+
+// Landing / launch page.
+app.get('/play', (_req, res) => {
+  res.sendFile(join(__dirname, 'public', 'play.html'));
+});
+
 app.use((err, _req, res, _next) => {
   console.error(err);
   res.status(err.status || 500).json({ error: err.message || 'server error' });